JPH10262456A - Rooftop greening structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a rooftop greening structure which reduces a load to a building through the use of lightweight materials, prevents the scattering of soil due to the influence of wind and smoothly discharge accumulated rain water at the time of raining. SOLUTION: In the rooftop greening device for a building, a pressing concrete 1 erecting a wall part around itself is placed on the rooftop of a building, a base soil 3 is laid on this concrete 1 as cushion material, the upper face of the soil 3 is covered with a waterproof layer 4, a water keeping layer 6 is formed on the layer 4, artificial culture soil 7 of an ultra-light weight is heaped up on the layer 6 and a drip hole under water 8 is opened at the lower side part of the wall part. A blindfolding fence 10 is erected over the wall part 2. Gold Hyuuga being the soil of large particles and drained well is uses as the layer 6 by washing in water and the mixture of thin-particle Kanumatsuchi and perlite by the ratio of 1: 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a greening structure on a roof of a building such as a house or a building, and more particularly, by constructing a farm, a flower bed or a small garden on the roof of a house or a building or on a veranda by simple means. The present invention relates to a greening structure for cultivating flowers and various plants.

[0002]

2. Description of the Related Art Conventionally, attempts have been made to cultivate flowers and plants by making small gardens or flower beds on the roof of various buildings. These small gardens and flowerbeds form an enclosure on the rooftop with concrete and other materials, lay the soil in the enclosure, plant flowers and plants, and spray water and chemical fertilizers for cultivation. In most cases, this is done.

[0003] By cultivating flowers and plants on the roof of the building in this way, the summer has the effect of preventing the reflection of sunlight and suppressing the rise in temperature in the building. In recent years, since air pollution has been progressing in large cities, greening the rooftops of various buildings has the effect of improving the air purification and landscape, and promoting greening of many buildings. It is the present situation that is desired. The same can be said for the rooftop or veranda of a residence.

[0004]

As described above, the material for forming a small garden or flower bed on the roof of a building such as a house or a building must be lightweight in order to reduce the load on the building. Requirements. Furthermore, there is a problem that the culture medium such as soil is easily dried on the roof due to the wind, and the surface layer of the culture medium is scattered by the strong wind.

Furthermore, heavy use of chemical fertilizers on the roof of buildings such as dwellings and buildings has a disadvantage that concrete and other aggregates are deteriorated. In addition, during rainfall, it is required that excess rainwater stored in the flowerbed be drained smoothly. When soil or the like is mixed in the drainage, it flows as active water and causes a problem that the drainage pipe leading to the ground may be clogged.

[0006] Furthermore, it is difficult to obtain a garden of sufficient size in an urban area with a high land price, and there is little opportunity to get close to green and get pleasure in growing plants and growing crops. Therefore, even if there is no garden, a farm can be built using the rooftop or veranda, and if flowers and trees can be grown and vegetables can be cultivated, it can be refreshed, relieved of stress, blurred and bedridden. It is thought that it becomes prevention of the like.

Accordingly, the present invention employs lightweight materials to reduce the load on the building, prevent the soil from scattering due to the wind, and smoothly drain the rainwater stored in the flowerbed during rain. It is an object of the present invention to provide a rooftop greening structure of buildings such as dwellings and buildings that can be used.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a pressing concrete which is cast on the roof of a building and has walls surrounding the pressing concrete, and is laid all over the pressing concrete. A basic soil as a cushioning material, a waterproof layer spread over the upper surface of the basic soil, a waterproof sheet stretched over the inner wall surface of the wall, a water retaining layer formed on the upper surface of the waterproof layer, A rooftop greening structure comprising: an ultralight artificial culture soil placed on a roof, and a water drainage hole opened at a lower portion of a wall portion at a position communicating with the waterproof sheet.

A blind fence is erected at an appropriate height above the wall to prevent the artificial culture soil from scattering due to strong wind. Kanuma soil is laid in a thickness of about 30 mm as a basic soil, and a glass fiber reinforced polyester plate whose cross section is formed in a small wave shape with good drainage is used as a waterproof layer.

The waterproof sheet has a thickness of about 1.2 mm.
Using a degree of civil engineering vinyl sheet, as the water-retaining layer, wash the gold sun, a large-grain soil with good drainage, and use it by forming it to a thickness of about 50 mm. Use perlite.

As an artificial culture soil, a mixture of fine granules of Kanuma soil and perlite in a ratio of 1: 2 is used after washing with water.

According to the rooftop greening structure, the artificial culture soil is extremely lightweight, is suitable as soil for cultivating flowers and plants, and has excellent water retention. Therefore, since rainwater that has passed through the artificial culture soil is stored in the water retaining layer, operations such as water injection and fertilization on the artificial culture soil become unnecessary.

[0013] The surplus rainwater is received by the waterproof sheet, and naturally flows down to the drain pipe through the drain hole on the underwater side due to the gradient provided on the roof of the building. Blind fences have the effect of preventing the artificial culture soil from scattering due to strong winds.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a rooftop greening structure according to the present invention will be described below with reference to the drawings. 1 shown in FIG. 1 is a holding concrete poured on the roof of a building,
Numeral 2 is a concrete wall erected around a suitable area selected on the holding concrete 1.

Reference numeral 3 denotes a basic soil as a cushion material laid all over the holding concrete 1. The fine particles of Kanuma soil are optimal as the basic soil 3, and the thickness of the basic soil 3 is about 30 mm.

Reference numeral 4 denotes a glass fiber reinforced polyester plate as a waterproof layer laid on the upper surface of the basic soil 3. The glass fiber reinforced polyester plate 4 is formed so as to have a small cross section in order to improve drainage of rainwater or the like.

Reference numeral 5 denotes a waterproof sheet stretched on the inner wall surface of the concrete wall 2. As the waterproof sheet 5, a thick civil engineering vinyl sheet (about 1.2 mm thick) is optimal. Reference numeral 5a denotes a metal waterproof sheet retainer disposed on the upper inside of the wall portion 2 to prevent the waterproof sheet 5 from hanging down.

6 is the glass fiber reinforced polyester plate 4
It is a water retention layer formed on the upper surface of the. The water retaining layer 6 is obtained by previously washing gold sun, which is a large grain soil, with water. As another material, obsidian pearlite in which ore is foamed in a pumice form may be employed. The thickness of the water retention layer 6 is about 50 m
m.

Reference numeral 7 denotes an ultralight artificial culture soil which is provided on the water retaining layer 6 to a thickness of, for example, about 400 mm. As the artificial culture soil 7, a mixture of fine granules of Kanuma soil and pearlite at a ratio of 1: 2 is washed with water before use. As another material, a lightweight culture soil obtained by mixing perlite or charcoal with fine needle bark may be used.

Reference numeral 8 denotes a water drain hole which is opened at a lower portion of the concrete wall portion 2 and at a position communicating with the glass fiber reinforced polyester plate 4 as a waterproof layer. The water drain hole 8 is made of a glass fiber reinforced polyester plate 4.
A hole for guiding excess rainwater received above to an unillustrated drainage pipe provided on the roof of the building, the concrete wall 2
Is formed to penetrate through.

Reference numeral 9 denotes a waterproof mortar trowel formed on the upper surface of the concrete wall portion 2. Reference numeral 10 denotes a state in which the lower end portion is embedded in the wall portion 2 and has a height of, for example, about 1000 mm. It is a blindfold fence erected. The blind fence 10 has a function of improving appearance by employing a resin-coated member and preventing scattering of the artificial culture soil 7 due to strong wind.

According to such a greening structure on the roof, at the time of construction, first, the concrete 1
Then, an appropriate area on the holding concrete 1 is selected and the wall 2 is erected. A waterproof mortar trowel finish 9 is applied to the upper surface of the concrete wall portion 2 and a waterproof sheet 5 is stretched over the inner wall surface of the wall portion 2 to make a metal waterproof presser 5a.
Then, the waterproof sheet 5 is fixed to the upper inside of the wall 2.

A lower drainage hole 8 is previously opened in the lower portion of the concrete wall portion 2, and the lower drainage hole 8 is provided at the time of construction.
A stainless steel wire net 11 having a mesh of about 3 mm is attached from the inside.

Next, a foundation soil 3 as a cushion material is laid all over the upper surface of the holding concrete 1. Further, a small corrugated glass fiber reinforced polyester plate 4 is laid on the upper surface of the basic soil 3 as a waterproof layer, and the overlapped portion is fixed with a wooden piece on the back and nailed.

On the glass fiber reinforced polyester plate 4, a large soil washed in advance with water is laid to form a water retaining layer 6 having a thickness of about 50 mm. After the super lightweight artificial culture soil 7 is put on the water retaining layer 6 to a thickness of about 400 mm, a blindfold fence 10 is set up on the upper part of the wall 2 while maintaining a height of about 1000 mm to construct a flower bed or the like. Construction is completed.

The above-mentioned artificial culture soil 7 is suitable as a soil for cultivating flowers and plants, and weighs one-half that of natural soil when wet.
To 1/3 of the weight and excellent in water retention.
Since the rainwater that has passed through the artificial culture soil 7 is stored in the water retaining layer 6, there is no need to perform operations such as injecting water into the artificial culture soil 7 or performing excessive fertilization even in normal times.

In case of heavy rain, excess rainwater is received by the glass fiber reinforced polyester plate 4 as a waterproof layer,
The water is guided to a drain pipe (not shown) provided on the roof of the building through the water drain hole 8. Originally, the concrete forming the flat part of the rooftop of the building is designed with a predetermined gradient given in advance in consideration of drainage. Therefore, as described above, the surplus rainwater is applied to the waterproof sheet 5 along the gradient. Through the drain hole 8 under the water, and naturally flows down to the drain pipe.

The blindfold fence 10 not only enhances the appearance but also prevents the surface layer of the artificial culture soil 7 from scattering due to strong wind.

Although the above embodiment has been described by taking the roof of a building as an example, the present invention can be applied to a roof of a residence or a veranda as it is, and a general two-story or three-story general residence is used. It is also suitable to carry out on the rooftop.

[0030]

As described above in detail, according to the rooftop greening structure of the present invention, the basic soil, the waterproof layer, the waterproof sheet, the water retaining layer, and the artificial culture soil used are all lightweight members. Therefore, the load on buildings such as dwellings and buildings is reduced, and a relatively large-sized farm, flower bed or small garden can be constructed without damaging the buildings.

The artificial culture soil used is not only lightweight but also suitable for cultivating flowers and plants.
In addition, since rainwater that has passed through the artificial culture soil is stored in the water retaining layer, it is not necessary to inject water into the artificial culture soil or excessive fertilization, and there is no fear that concrete and other aggregates caused by heavy use of chemical fertilizers are deteriorated.

The surplus rainwater is received by the waterproof layer and naturally flows down to the drain pipe through the water drain hole, so that the water stored in the flower bed can be smoothly drained. At this time, since the water retaining layer and the artificial culture soil have been washed beforehand and used, there is no occurrence of active water due to the contamination of the drainage with the soil and the like, and there is no occurrence of a situation where the drain pipe leading to the ground is clogged.

In addition, the appearance is improved by erection of the blind fence while maintaining an appropriate height above the wall, and especially under the condition that the soil and the like are easily dried by the influence of the wind on the roof of the building. Even if it is, the scattering of the artificial culture soil can be prevented.

According to the present invention, greening of houses and building roofs is possible in a relatively short construction period, and the use of lightweight materials at the time of construction reduces the load on buildings and reduces the wind. It is possible to provide a rooftop greening structure capable of smoothly draining rainwater stored in a flowerbed at the time of rainfall without scattering of soil due to the influence.

Furthermore, even if there is no garden, a farm or the like can be constructed using a rooftop or a veranda, and flowers and trees can be grown and vegetables can be cultivated.
It is thought that it will also relieve stress and prevent blurring and bedriddenness.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating one embodiment of a rooftop greening structure according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pressing concrete 2 ... Wall 3 ... Basic soil 4 ... Glass fiber reinforced polyester board (as a waterproof layer) 5 ... Waterproof sheet 5a ... Waterproof press 6 ... Water retaining layer 7 ... Artificial culture soil 8 ... Water draining hole 9 ... Waterproof mortar iron finish 10 ... Blindfold fence 11 ... Wire mesh

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04D 11/00 E04D 11/00 B

Claims (9)

[Claims] 1. A holding concrete which is cast on the roof of a building and a wall is erected around the building, a base soil as a cushion material laid on the holding concrete on one side, and an upper surface of the base soil. A waterproof layer spread, a waterproof sheet stretched over the inner wall surface of the wall, a water retaining layer formed on the upper surface of the waterproof layer, an ultralight artificial culture soil provided on the water retaining layer, and the waterproof sheet. A rooftop greening structure comprising: a drainage hole which is opened at a lower portion of a wall portion in a communicating position; and a farm or a flowerbed or a small garden is constructed on the rooftop. 2. The rooftop greening structure according to claim 1, wherein a blindfold fence is erected at an appropriate height above the wall to prevent the artificial culture soil from being scattered by strong wind. 3. A fine grain of Kanuma soil of about 30 m as a basic soil.
The rooftop greening structure according to claim 1, which is laid in a thickness of m. 4. The rooftop greening structure according to claim 1, wherein the waterproof layer is made of a glass fiber reinforced polyester plate whose cross section is formed in a small wave shape with good drainage. 5. The rooftop greening structure according to claim 1, wherein the waterproof sheet is a civil engineering vinyl sheet having a thickness of about 1.2 mm. 6. The rooftop greening structure according to claim 1, wherein the water retaining layer is formed by washing gold sun, which is a large-sized soil with good drainage, with water and forming it to a thickness of about 50 mm. . 7. The rooftop greening structure according to claim 1, wherein obsidian pearlite obtained by foaming ore into a pumice is used as the water retention layer. 8. The rooftop greening structure according to claim 1, wherein a mixture of fine granules of Kanuma soil and perlite in a ratio of 1: 2 is washed with water and used as the artificial culture soil. . 9. The rooftop greening structure according to claim 1, wherein the artificial culture soil is a lightweight culture soil obtained by mixing perlite or charcoal with fine needle bark.